1.4 sport ibiza trouble

[xshabzx]

Sometimes my car loses revs and jumps, After i put my foot down on the gas it goes away??

here is a list of what i have done so far but yet the problem is still there.
spark plugs
new throttle body
air filter

any help would be much apreciated....

 

[GlanzaV]

At idle or when driving with steady throttle/accelerating?

 

[xshabzx]

at idle sometimes and when driving steady
thanks

 

[ibiza_adam]

I had the same thing on a Vectra years ago, and it turned out to be the Idle Air Control Valve. Not sure if it's the same fault, but deff worth looking at?!?!?!

 

[xshabzx]

any other ideas?

 

[xshabzx]

went to a local garage and he plugged it into his comp bringing the code p1142 (17550) load detection:value below lower limit???
17550 P1142 Load Calculation Cross Check Lower Limit Exceeded (what does that mean?)

 

[xshabzx]

list of what i have changed
sparks
throttle body
map sensor
still the problem is there

 

[MATT RILEY]

Manifold presure sensor,£35 one min to fit. Bet the old ones well sooty thanks to the EGR.

 

[xshabzx]

Is that not the map sensor mate?